LAN Communication Apparatus Bit-Rate Control for Multi-Camera Streaming
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Solution Overview
Problem
In live streaming using multiple cameras, bandwidth congestion within a local area network often leads to delays in data communication, as existing techniques that rearrange data transmission order do not effectively reduce delays despite resolving congestion.
Innovation Solution
A communication apparatus within a local area network that detects other streaming devices and adjusts the bit-rate of moving image data transmission, setting it to a lower rate when devices are detected within the network to prevent congestion and minimize delays.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If multiple cameras simultaneously transmit moving image data through a local area network, then multi-camera live streaming is enabled, but bandwidth congestion occurs and delays in live streaming increase
Solution Approach 1:
The patent dynamically changes the transmission bit-rate parameter based on network conditions. When multiple cameras are detected in the same network, the system automatically adjusts the bit-rate to a lower value to prevent bandwidth congestion and reduce live streaming delays, while maintaining acceptable video quality
Solution Approach 2:
The system implements a feedback mechanism by detecting other communication apparatuses performing live streaming in the same network and using this information to adjust transmission parameters. The control unit receives information about live streaming, detects other cameras, and accordingly modifies the bit-rate to optimize network performance
2Measurement precision
If the bit-rate of moving image data is increased to improve video quality, then higher quality live streaming is achieved, but bandwidth consumption increases and congestion occurs
Solution Approach 1:
The system dynamically adjusts the bit-rate parameter based on the number of cameras detected in the network. When multiple cameras are present, the bit-rate is reduced to lower data transmission volume and prevent congestion, while when a single camera operates, the higher first bit-rate is used to maximize video quality
Data Source
AI summary
A communication apparatus that is located within a local area network (LAN) includes a communication unit configured to communicate with an external apparatus located outside the LAN and with another communication apparatus located within the LAN, and a control unit. The control unit receives information about live streaming performed using a plurality of communication apparatuses. The control unit detects the other communication apparatus configured to perform the live streaming, the other communication apparatus being located within the LAN. In a case where the other communication apparatus configured to perform the live streaming is not detected within the LAN, the control unit sets a bit-rate of moving image data to a first bit-rate. In a case where the other communication apparatus configured to perform the live streaming is detected within the LAN, the control unit sets the bit-rate to a second bit-rate, the second bit-rate being lower than the first bit-rate.